After a legal dispute over its carbon‑fiber cap, Xiaomi provides a free aerodynamic upgrade for the SU7 Ultra, boosting stability at high speeds. Discover the details today!
In a move that blends engineering with customer service, Xiaomi has launched a complimentary aerodynamic‑cap upgrade for owners of its high‑performance electric sedan, the SU7 Ultra. The upgrade, announced on March 10, replaces the original carbon‑fiber “cap‑couver” with a revamped version that adds two hidden air‑flow valves.
Why the Upgrade Was Needed
When the SU7 Ultra hit the market early in 2025, buyers paid up to ¥42,000 (≈ US$5,800) for an optional carbon‑fiber cap. Promotional material claimed the cap featured “dual‑channel airflow” to cool the wheels and battery. Independent tests, however, found no functional ducts, sparking a wave of criticism and a series of lawsuits accusing Xiaomi of false advertising.
In October 2025, a court in Suzhou ruled against Xiaomi, ordering triple damages for the alleged mis‑representation. The decision was later softened by a February 2026 judgment in the Spratly Islands court, which deemed the phrase “high‑efficiency airflow” as technically permissible. The legal tug‑of‑war left many owners frustrated and the model’s monthly sales dwindling to just 45 units in January.
What the New Cap Does
The free retrofit modifies the internal geometry of the front air ducts. Two compact aerodynamic valves are installed inside the existing carbon‑fiber cover. Working in tandem with the vehicle’s active grille, the valves automatically open in “Track” mode or when the car exceeds 150 km/h (93 mph), directing a precise stream of air into the front compartment.
- Improved stability: By fine‑tuning front‑end pressure, the upgrade adds downforce without altering the car’s exterior look.
- Minor power draw: The active system consumes a small amount of energy, a trade‑off Xiaomi acknowledges.
- Installation time: Certified service centers report a 2–3 hour fit‑out.
Technical Snapshot of the SU7 Ultra
The SU7 Ultra sits in the premium electric‑sports segment alongside the Zeekr 001 FR and Porsche Taycan Turbo GT. Its core specs include:
- All‑wheel drive (AWD) with three motors delivering a combined 1,526 hp.
- High‑voltage platform supporting ultra‑fast charging.
- Special‑grade CATL battery using Kirin cell chemistry, engineered for high‑rate discharge on the track.
- Target CLTC range of over 600 km (≈ 373 mi) in the standard configuration.
Strategic Implications
By treating the cap as a post‑sale hardware upgrade—much like a smartphone firmware update—Xiaomi signals a shift toward an “iterative support” model for its vehicles. The free retrofit not only mitigates lingering legal risk but also aims to restore consumer confidence and energize a sluggish sales pipeline.
What This Means for Buyers
If you own a SU7 Ultra, the upgrade can be booked through any authorized Xiaomi service center at no cost. Existing owners have reported a noticeable tightening of front‑end handling during high‑speed runs, though the impact on overall driving range remains to be quantified.
For prospective buyers, the episode underscores the importance of scrutinizing marketing claims and staying informed about post‑purchase support programs.
Stay tuned for further updates on Xiaomi’s EV lineup and how the company continues to navigate the intersection of technology, regulation, and customer expectations.